3 children have a total of $3740.
Charlie has $320 more than Adam.
Adam has 2 times as much as Bryan.
- How much does Charlie have?
- How much does Adam have?
- How much does Bryan have?
(a)
Choose the person with least money to be 1 u.
Amount that Bryan has = 1 u
Amount that Adam has = 2 u
Amount that Charlie has = 2 u + 320
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 320
= 5 u + 320
5 u + 320 = 3740
5 u = 3740 - 320 = 3420
5 u = 3420
1 u = 3420 ÷ 5 = 684
Amount that Charlie has
= 2 u + 320
= 2 x 684 + 320
= 1368 + 320
= $1688
(b)
Amount that Adam has
= 2 u
= $1368
(c)
Amount that Bryan has
= 1 u
= $684
Answer(s): (a) $1688; (b) $1368; (c) $684